///*******************************************************************************
// * Copyright (c) 2006 IBM Corporation and others.
// * All rights reserved. This program and the accompanying materials
// * are made available under the terms of the Eclipse Public License v1.0
// * which accompanies this distribution, and is available at
// * http://www.eclipse.org/legal/epl-v10.html
// *
// * Contributors:
// *     Matthew Webster - initial implementation
// *******************************************************************************/
//package org.aspectj.weaver.loadtime;
//
//import java.util.Stack;
//
//import com.bea.jvm.ClassLibrary;
//import com.bea.jvm.JVMFactory;
//
///**
// * BEA JRocket JMAPI agent.
// *
// * Use "-Xmanagement:class=org.aspectj.weaver.loadtime.JRockitAgent"
// */
//public class JRockitAgent implements com.bea.jvm.ClassPreProcessor {
//
//	private ClassPreProcessor preProcessor;
//
//	/*
//	 * This is used to implement the recursion protection offered by JVMTI but not by JRockit JMAPI. I we are called to preProcess a
//	 * class while already preProcessing another we will return immediately
//	 */
//	private static ThreadLocalStack stack = new ThreadLocalStack();
//
//	public JRockitAgent() {
//		this.preProcessor = new Aj();
//
//		ClassLibrary cl = JVMFactory.getJVM().getClassLibrary();
//		cl.setClassPreProcessor(this);
//	}
//
//	public byte[] preProcess(ClassLoader loader, String className, byte[] bytes) {
//		byte[] newBytes = bytes;
//
//		if (stack.empty()) {
//			stack.push(className);
//			newBytes = preProcessor.preProcess(className, bytes, loader, null);
//			stack.pop();
//		}
//
//		return newBytes;
//	}
//
//	private static class ThreadLocalStack extends ThreadLocal {
//
//		public boolean empty() {
//			Stack stack = (Stack) get();
//			return stack.empty();
//		}
//
//		public Object peek() {
//			Object obj = null;
//			Stack stack = (Stack) get();
//			if (!stack.empty())
//				obj = stack.peek();
//			return obj;
//		}
//
//		public void push(Object obj) {
//			Stack stack = (Stack) get();
//			if (!stack.empty() && obj == stack.peek())
//				throw new RuntimeException(obj.toString());
//			stack.push(obj);
//		}
//
//		public Object pop() {
//			Stack stack = (Stack) get();
//			return stack.pop();
//		}
//
//		protected Object initialValue() {
//			return new Stack();
//		}
//	}
//
//}
